1    /* 
2     * This program interprets melodic lines given in ABC notation as a 
3     * chromesthete might. 
4     * 
5     * A Pitch class will be defined, and will take center stage in the 
6     * processing. 
7     * 
8     * Interpreting a melody in ABC notation will amount to flashing 
9     * colored rectangles for prescribed durations, while sounding 
10    * the pitch! The color of the rectangle will correspond to pitch 
11    * class. The duration will correspond to the duration of the note. 
12    * 
13    * For this first version of the program, the duration will be held 
14    * constant at 1 beat. 
15    * 
16    * Three sorts of images will appear on the screen, the chromesthetic 
17    * output box, a text input nox, and an error message box. Simplicity 
18    * of design is rendered by the permitting only one box to be on the screen 
19    * at a time. 
20    * 
21    * ABC represents notes in a manner consistent with these examples: 
22    * C, D, E, C D E c d e 
23    * 
24    * Google ABC music representation if you would like to know more about it. 
25    */
26   
27   package chromesthesia1;
28   
29   import painter.SPainter;
30   import javax.swing.*;
31   import java.util.Scanner;
32   
33   public class Chromesthesia {
34   
35       //INFRASTRUCTURE FOR THE PROGRAM -- LAUNCHING A "GRAPHICS" THREAD
36   
37       public static void main(String[] args) {
38           SwingUtilities.invokeLater(new ThreadForGUI());
39       }
40   
41       private static class ThreadForGUI implements Runnable {
42           @Override
43           public void run() {
44               new Chromesthesia();
45           }
46       }
47   
48       public Chromesthesia() {
49           interpreter();
50       }
51   
52       // FEATURED VARIABLES
53   
54       private static SPainter miro;
55       private static Pitch[] pitches;
56   
57       // THE INTERPRETER
58   
59       public static void interpreter() {
60   
61           initialization(); // miro and pitches
62   
63           while(true) {
64               String input = getInput();
65               if(input.equalsIgnoreCase("EXIT")) {
66                   break;
67               }
68               else {
69                   try {
70                       playMelody(input,pitches);
71                   } catch(Exception ex) {
72                       showErrorMessage(ex.toString());
73                   }
74               }
75           }
76   
77           cleanup(); //miro has to go
78       }
79   
80       // METHODS PERTAINING TO THE CHROMESTHETIC PITCHES
81   
82       private static Pitch[] establishPitches(SPainter painter) {
83           Pitch[] pitches = new Pitch[21];
84           Pitch pitchMiddleC = new Pitch("C", painter);
85           pitches[0] = pitchMiddleC;
86           Pitch pitchLowC = new Pitch("C,", painter);
87           pitches[1] = pitchLowC;
88           Pitch pitchHighC = new Pitch("c", painter);
89           pitches[2] = pitchHighC;
90           Pitch pitchMiddleD = new Pitch("D", painter);
91           pitches[3] = pitchMiddleD;
92           Pitch pitchLowD = new Pitch("D,", painter);
93           pitches[4] = pitchLowD;
94           Pitch pitchHighD = new Pitch("d", painter);
95           pitches[5] = pitchHighD;
96           Pitch pitchMiddleE = new Pitch("E", painter);
97           pitches[6] = pitchMiddleE;
98           Pitch pitchLowE = new Pitch("E,", painter);
99           pitches[7] = pitchLowE;
100          Pitch pitchHighE = new Pitch("e", painter);
101          pitches[8] = pitchHighE;
102          Pitch pitchMiddleF = new Pitch("F", painter);
103          pitches[9] = pitchMiddleF;
104          Pitch pitchLowF = new Pitch("F,", painter);
105          pitches[10] = pitchLowF;
106          Pitch pitchHighF = new Pitch("f", painter);
107          pitches[11] = pitchHighF;
108          Pitch pitchMiddleG = new Pitch("G", painter);
109          pitches[12] = pitchMiddleG;
110          Pitch pitchLowG = new Pitch("G,", painter);
111          pitches[13] = pitchLowG;
112          Pitch pitchHighG = new Pitch("g", painter);
113          pitches[14] = pitchHighG;
114          Pitch pitchMiddleA = new Pitch("A", painter);
115          pitches[15] = pitchMiddleA;
116          Pitch pitchLowA = new Pitch("A,", painter);
117          pitches[16] = pitchLowA;
118          Pitch pitchHighA = new Pitch("a", painter);
119          pitches[17] = pitchHighA;
120          Pitch pitchMiddleB = new Pitch("B", painter);
121          pitches[18] = pitchMiddleB;
122          Pitch pitchLowB = new Pitch("B,", painter);
123          pitches[19] = pitchLowB;
124          Pitch pitchHighB = new Pitch("b", painter);
125          pitches[20] = pitchHighB;
126          return pitches;
127      }
128  
129      private static Pitch find(String token, Pitch[] pitches) throws Exception {
130          for( int i = 0; i < pitches.length; i = i + 1) {
131              Pitch pitch = pitches[i];
132              if(pitch.abcName().equals(token)) {
133                  return pitch;
134              }
135          }
136          throw new Exception("### PITCH " + token + " NOT FOUND");
137      }
138  
139      private static void display(Pitch[] pitches) {
140          for(int i = 0; i < pitches.length; i = i + 1) {
141              System.out.println(pitches[i].toString());
142          }
143      }
144  
145      private static void playMelody(String input, Pitch[] pitches) throws Exception {
146          Scanner scanner = new Scanner(input);
147          while(scanner.hasNext()) {
148              String token = scanner.next();
149              Pitch pitch = find(token, pitches);
150              pitch.play("1");
151          }
152      }
153  
154      // INITIALIZATION, CLEANUP, GETTING INPUT, ERROR MESSAGING
155  
156      static private void showErrorMessage(String message) {
157          miro.setVisible(false);
158          JOptionPane.showMessageDialog(null, message);
159      }
160  
161      private static void initialization() {
162          //ESTABLISH THE PAINTER AND GIVE IT A SUBSTANTIAL BRUSH WIDTH
163          miro = new SPainter("Chromesthesia", 500, 500);
164          miro.setVisible(false);
165          miro.setBrushWidth(7);
166          // ESTABLISH THE CHROMESTITIC PITCH CLASS OBJECTS
167          pitches = establishPitches(miro);
168          display(pitches);
169      }
170  
171      private static String getInput() {
172          miro.setVisible(false);
173          String label = "Please enter a melody in ABC notation, or EXIT... ";
174          String input = JOptionPane.showInputDialog(null, label);
175          miro.setVisible(true);
176          if(input == null) {
177              input = "";
178          }
179          return input;
180      }
181  
182      static private void cleanup() {
183          System.exit(0);
184      }
185  }
186